Press



, Aug. 25, 1931. R. T. ANDERSON 1,320,590

PRESS Filed June 9, 1928 2 Sheetfs-Shevet l gwuento-c:

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Aug. 25, 1931. R. T. ANDERSON PRESS Filed June 9, 1928 2 Sheets-Sheet 2 Patented Aug. 25 1931 UNITED STATES.

MTENTl OFFICE l RAYMOND T. ANDERSON, OF CLEVELAND,A OHIO, ASSIGNOR TO THE V. D. ANDERSON COMPANY, F CLEVELAND, OHIO, A CORPORATION OF OHIO PRESS Application led .Tune 9, 1928. Serial No. 284,217.

This invention pertains to improvements in presses and more particularly to that type wherein the material is subjected to a high degree of compression with a view of expel- '5 ling the oil or grease therefrom with a resultant dry cake.

Such presses are well known and are commonly employed in this country for expressing oil from cotton seed. By reason of Itheir construction the cake which is extruded or forced therefrom while being dense and hard is of necessity thin and by reason of such thinness is unsuitable for range feeding of cattle. To be usable as lsuch feed it should have a thickness say from one-half to one inch whereas when it issues from the usual press of the type above mentioned it will, be from one-thirty-second to one-half inch in thickness, a. degree which renders it unusable.

The main object of thepresent invention resides in the provision' of means, which act` ing on the cake as it is extruded reforms the same and produces a hard mass of the desired and usable thickness. In lother words, the

extruded cake reformed and compressed into a body of v the requisite thickness.` In addition to recompressmg and producing a cake l of the required thickness, it is found that the presence of the recompression mechanism o r means brings about a higherV degree of oil expulsion thanxobtains where. the singlel choke alone is used.

As above indicated, 'in the broader aspect of the invention any form of press which roduces a thin hard cake may beemployed ut the invention lends itself to the utilization of thel separated screw type such as 1s shownA in Letters Patent to Anderson Nos. 829,314 and 829,315.

One embodiment of the invention'for carrying out the invention is illustrated in the annexed drawings wherein: p I

Figure 1 is a longitudinal vertical section ofa press, p

Figure 2 a. sectional .view on a somewhat enlarged scale of the discharge end of the press and the cake reforming device,

Fi ure 3 a transverse sectional view on the line III-III of Figure 2, and

Figure 4 a perspective view, partly 1n section, ofthe adjustable elementof the cake reforming mechanism and associated elements. o

In the drawings 1 denotes the base ofthe main frame formed with a head section 2 and a discharge or end member 3.

Mounted in suitable bearings 4 and 5 carried by member 2 is a tubular shaft 6 to whichis keyed a gear 7 drivenfrom any suitable source of power (not shown). The

.shaft` 6 has a spline connection 9 with the shaft 10. Said shaft extends throughout the length ofthe press, passing beneath the feed chute 11, through the barrel of the pressdesignated Lby 12, through the adjustable choke,

later described, and through the cake discharge casting13.v The outer end of the vshaft has secured to it al flanged sleeve 14 which cooperates with radial and thrust bearlngs 15 and 16 respectively. Y

The barrel 12 is preferably formed as in the patents to Anderson above noted and omv may be said to comprise a series of bars arranged in circular series `with the inner edges standing in close spaced relation.

Securedv t0 shaft 10 at the head end of the press is a feed worm 17 which is followed by*- tion of the worms and thus sets up the necessary pressure within the barrel to expel the oil from the material undergoing treatment, is of the type set forth and claimed in my copending application Serial No'. 33,461 now Patent No. 1,752,054 dated M arch 26th, 1930. Briefly it may be said to comprise a series of jaws, two of which are shown asiat 22 and 23vand are adjustable radially throu h suitable mechanism toward and from t e sleeve 21 to increase or diminish the size of the discharge through which the cake is forced. As above noted the cake is discharged from one-thirty-second to one-half tion of the sleeve being threaded and likewise provided with a channel or groove 30. Encircling the sleeve 29, and adjustable longitudinally thereof is a tubular member 31 having a rounded head 32 at its inner end and having an annular groove 33 formed about a. flange 34 at the outward end.

A nut 35 is mounted upon the threaded portion of the sleeve 29 and is provided with a. sei ies of openings 36 therein into which a bar may be inserted for-turning the nut or holding the same as the shaft 10 and collar `29 are rotated therein and thereby securing adjustment of the nut and the member 31 toward or from the discharge opening of the press. Nut 35 is formed with a grooved extension 37 and a flange 3S formed upon a two part collar 39 is seated within the groove.

A second flange 40 on the collar engages groove 33. A ring or band 41 encircles the collar and is neld in place by screws 42 passing through openings in the ring and into the collar. A key or spline 43 is secured within the member 31, said spline entering the guifleway 30 and preventing rotation of said member 31 independent of sleeve 29 and the shaft 10 to which the sleeve is keyed.

B the arrangement just described the hea or recompression member as it may be termed may be advanced into or retracted from the throat or recompression chamber 28. By such adjustment the thickness of the recompressed cake may be readily regulated.

The operation of the press may be stated as follows, assuming that cotton seed is to be treated:

The seed passing inward through chute 11 is advanced into the press by the feed worm 17. The seeds are then acted upon by the separated worms which crush and compress the same expelling the major portion of the oil which passes outwardly through the barrel and at the same time forcing the substantially oil-free mass outward through the choke in the form of relatively thin cake. It will of course be understood that a cake having the desired oil content may be produced by the proper adjustment of the choke. Thus far the action of the press is the same as obtains in the Anderson press above identified.

The cake passing through opening 27 enters the recompression chamber 28 wherein it accumulates and is held against free outward movement by head 32.

The cake when it enters the chamber is hot, due to the action of friction Within the press and also the forcing of the same through the choke and as a. consequence lends itself to recompression into a thicker mass say from one-half inch upward. This relatively thick cake is of course forced out of the chamber by the on-coming cake passing from the choke and drops through the discharge opening in the lower part of member 13.

The thick cake thus formed is then cooled and is then fed to a breaker where it is broken up. It is then screened for the two sizes required for cracked cake and the resulting fine material is run through a tine grinder to make cotton-seed meal.

From the foregoing it'will be seen that in a single press and as a continuing operation cake of a desired thickness may be produced.

As above noted, the presence of the recompression member adjacent the choke of the press seemingly sets up a back pressure and retards the cake from moving outwardly through the choke to such an extent that a higher degree of compression obtains within the press andthe cake which results is drier to at least the extent of one percent than would obtain with the ordinary press.

lVhile I have spoken primarily of the treatment of cotton seed and the production of a cake therefrom it is to be understood that the invention is not limited to the treatment of such material. Furthermore, the term oil, as it appears in the claims, is to be treated as the equivalent of grease or moisture according to the material undergofing treatment.

What is claimed is:

1.; In a press the lcombination of means to compress material and to thereby expel the oil contentthereof to the desired degree and to extrude cake; and means acting directly and continuously on the cake as it is formed and extruded as the result of said compressing action to re-press and re-form the cake, said last named means being adjustable toward and from the compression and eXtruding meanswhereby the thickness of the reformed cake may be regulated.

2. In a press the combination of means to compress material to expel the oil therefrom and to produce a thin cake having a low oil content and means acting directly and continuously on the thingcake to re-compress and produce a cake relatively thick as compared to the cake resulting from the initial compression", said last named means being adjustable toward and from the compression and thin cake producing means whereby the thicklessdof therecompressed cake may -be reguate 5 cake is discharged; and means located in said chamber cooperating with the walls thereof and acting directly and continuously upon the thin cake to recompress and re-form the same, said last named means being ad- 0 justable toward and from the compression and thin cake producing means whereby the thickness of the recompressed cake may be regulated.

4. In a press the combination of a barrel; means located therein for subjecting the material undergoing treatment to a high 4degree of compression whereby the oil content thereof is materially lowered; a choke 'cooperating with the press to allow the material to pass 20 therethrough in the form of a thin and relatively dry cake; a chamber into which said cake is discharged; means located in said chamber for cooperating with the walls thereof to re-compress and re-form the cake; and mechanism independent of the choke for adj usting said means with reference to the walls of the chamber.

5. In a press the combination of a barrel; a shaft extending therethrough and outwardly of the discharge end of the barrel; means mounted on the shaft within the barrel and subjecting the material undergoing treatment to a compressive action; a choke located at the discharge end of the press; a casting extending outwardly from the choke and surrounding the shaft in spaced relation-thereto and forming a chamber into which 'the cake passes from the choke; and means mounted on the shaft within the chamber for arresting the outward movement of the cake through the chamber and through such action re-compressing and re-forming the same.

6. In a press the combination of a barrel; a

shaft extending therethrough and outwardly thereof at the discharge end of the barrel; means carried by the shaft within the barrel which the cake is discharged; a casting extending outwardly from the choke and having a chamber formed therein into which the cake is discharged; a sleeve secured to that portion of the shaft which lies within the chamber, the outward portion of the sleeve being exteriorly threaded; a member encircling said sleeve and provided at its inner end with a rounded head; a nut engaging the threaded sleeve and connections between said nut and head whereby the head may be adjusted toward yand from the choke.

8. In a press, the combination of a barrel; a shaft therein; a series of separated worms mounted thereon; a multipart choke mounted at the discharge end of the press, the elements whereof are adjustable at right angles to the shaft to vary the size of the opening through the choke; a chamber extending outwardly beyond the choke; and means located within the chamber and cooperating with the walls thereof to recompress and reform the cake discharged into the chamber through the choke.

9. In a press, the combination of a barrel; a shaft extending therethrough; a series of separated worms mounted thereon; an adjustable choke at the discharge end of the barrel; an enlarged chamber extendin outwardly from the discharge end of the arrel and outward of the choke; and means located in said chamber and adjustable toward and from the choke independently of any adjustment of the choke to recompress and reform the cake passing from the choke.

10. A press as in claim 9 wherein the enlarged chamber. gradually increases in diameter. outward of the. discharge opening formed by the choke.

In testimony whereof I have signed my name to'this specification.

RAYMOND T. ANDERSON.

for subjecting the material undergoing treatment to compression; a' choke located at the discharge end of the barrel; a casting extending outwardly from the choke and having a chamber formed therein into which the cake passing from the choke is discharged; a member carried by the shaft having a rounded headwhich faces the choke; and means for adjusting said member toward and from the choke within the chamber.

7. In a press the combination of a barrel; a l

shaft extending therethrough and outwardly beyond the discharge end of the barrel means mounted upon the shaft for acting upon the material undergoing treatment to compress the same; a choke mounted at the discharge end of the barrel; means for varying the position of the choke with reference to the shaft to increase or diminish the opening through 

